Car-coupling.



H. G. GRIGGER. GAB COUPLING.

APPLICATION FILED JULY 31, 1907 Patented July6, 1909.

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H". G. CRIGGER.

GAB. COUPLING. APPLICATION FILED JULY 31, 1907.

927,453. Patented 6,1909;

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INVENTOI? M 6 6/Mu HENRY BE IEBER A 7'TOHNEYS UNITED sTAtrEs PATENT OFFICE.

HENRY C. GRIGGER, OF MEMPHIS, TENNESSEE, ASSIGNOR OF ONE-THIRD TO DAVID O.

SIMPSON, OF KENOVA, WEST VIRGINIA.

CAR-COUPLING.

To all whom it may concern: Be it known that I, HENRY O. Cnioenn, a citizen of the United States, and a resident of Memphis, in the county of Shelby and. State of Tennessee, have made certain new and useful Improvements in CanCouplings, of which the following is a specification.

My invention is an improvement in car couplings and particularly in that class of such devices known as the Janney type; and the invention consists in certain novel. constructions and combinations of parts as will be hereinafter described and claimed.

In the drawingsFigure 1 is a top plan view, and Fig. 2 a similar view partly in section of a coupler embodying my invention. Fig. 3 is a detail perspective view of the operating bar. Fig. 4 is a cross section drawn slightly in rear of the locking dog on about line l of Fig. 1. Fig. 5 is a vertical longitudinal section of the draw head, on about line 5-5 of Fig. 1 and Fig. (i is a detail perspective view of the coupling hook.

In carrying out the invention the draw head A with its fixed jaw B, and the coupling hook C may in general respects be of ordinary construction. The hook C is pivoted at D and has its rearwardly projecting tongue E provided at its rear end on its inner side with the projecting lug F to lap in rear of the upright flange G on the locking dog H, and. is provided at its outer side with the lateral lug I. The rear edge of the coupling hook tongue is provided about midway its ends with a notch or recess J which receives a pin K on the operating bar M and such rear face is also serrated at L to cooperate with the serrations 1/ on the operating bar in the use of the invention as presently described.

The locking dog II is in the form of a block pivoted at its outer end at H and operating at its lower edge in a recess N, formed in the upper face of the lower wall of the draw head, so that the block when in locked position bears in rear of a ledge or rib N and will be braced thereby in the operation of the invention. This dog H is provided on its under side in rear of the front edge flange with an inclined surface H leading from its swinging edge and with a surface H at an angle to the inclined surface H and extendin below the pivot of the block as best shown in the drawing. The purpose of this construction is that the operating bar engaging Specification of Letters Patent.

Application filed July 31, 1907.

Patented July 6, 1909.

Serial No. 386,446.

at its inner end with the inclined surface of the block will. tend to raise the same to free the coupling hook and then riding along the inner surface H. will hold the locking dog in unlocked posit-ion. In addition to thus operating the locking dog, the operating bar is arranged to positively open and close the coupling hook as it is moved in onedirection or the other. In order that this may be accomplished without interfering with the op eration of the locking dog, I. provide a detachable or interlocking connection between the coupling hook and the operating bar, which is preferably secured by the serrations on the rear face of the tongue of the coupling hook, and also on the front face of the operating bar, the operating bar moving into and out of interlocking engagement with the tongue of the coupling hook in the operation of the device as will be understood from the drawings. This construction it will be noticed enables me to release the dog before the operating bar engages with the tongue of the coupling hook in the uncoupling operation and in readjusting the parts to coupled position it permits me to readjust the tongue of the coupling hook to coupled position, and then to move out of engagement with said tongue as the operating bar is adjusted. to a position in which it permits the dog to fall to secure the tongue of the coupling hook.

The bar 0 may connect with the operating bar and extend to the side of the car in convenient reach for operation in the use of the invention. The operating bar is guided in its longitudinal n'ioven'lents by a rib 1 on the rear wall of the recess in the draw head on tering a longitinlinal. groove 2 in the rear face of the operating bar, such construction preventing any upward displaccn'lent of the operating bar in the use of the invention. It

will also benoticed that the serrations on the locking bar are formed on the front face of a web or rib projecting upwardly above the body of the operating bar, as best shown in Fig. 3 of the drawings.

In operation it will be noticed the pin K on the operating bar operates in the notch or recess J and permits a limited movement of the operating bar independent of the tongue of the coupling bar, so that the operating har may move into and out of interlocked engagement with the tongue of the coupling hook in operating such hook to both its coupled and uncoupled positions.

In operation, when the parts are coupled, it will be noticed the operating bar will be in its outermost position and its serrations will be detached or out of interlocked engagement with the serrations of the tongue. If now, the operating bar be moved inward, it will first lift the locking dog to uncoupled position and then will move into interlocked engagement with the tongue of the coupling hook and will throw said hook to open position.

The construction is simple, easily operated and will efficiently serve the purpose for which it is designed.

I claim:

1. The car coupling herein described, comprising the draw head having the fixed jaw and the pivoted jaw, and having its bottom wall provided in its upper face with a recess for a locking dag, and having a lateral opening at one side in line with said recess, a looking dog pivoted at its outer end and seating at its lower edge in the recess in the upper face of the bottom wall of the draw head, the said dog having at its swinging edge a flange operating in rear of the rib at the front edge of the recess of the draw head, and having in rear of said flange on its under side an inclined surface for engagement by an operating bar, a coupling hook having a rearwardly projecting tongue and provided at the rear edge of said tongue at its inner side with a lug for engagement by the flange of the locking dog, and having at the opposite side of said rear edge a lug operating through the opening in the side of the draw head, and having on the rear edge of said ton 'ue a recess for a pin on an operating bar, and also serrations, and a bar operating through the lateral opening in the draw head and projecting at its inner end into the re cess in the lower wall of said draw head and arranged at such end to engage the inclined face of the locking dog, the said operating bar being also provided with a pin operating in the notch in the coupling hook tongue and with serrations cooperating with those on the coupling hook tongue, all substantially as and for the purposes set forth.

2. The combination in a car coupling, of a draw head, a coupling hook having a tongue provided at its rear edge with serrations, a locking dog for securing said tongue and an operating bar arranged to free the locking dog, and provided with serrations forming interlocking connection with the tongue of the draw head through the serrations thereof, substantially as set forth.

3. The combination in a car coupling, of a draw head having its lower wall provided in its upper face with a recess, and having a forwardly projecting rib on the rear wall of said recess, a locking dog pivoted at its outer end and operating in said recess, a coupling hook having its rearwardly projecting tongue provided on its rear edge with serrations, and an operating bar movable longitudinally in the recess of the draw head and operating at its inner end below the locking dog to unlock the same, and having on its rear face a longitudinal groove receiving the rib of the draw head, and having an upwardly projecting rib or web serrated on its front face to cooperate with the serrations of the coupling hook tongue, sub stantially as set forth.

1-. A car coupling having a coupling hook having its tongue provided at its rear end with serrations, combined with an operating bar having serrations detachably interlocking with those of the coupling hook tongue, and adapted to operate said tongue to both coupled and uncoupled position.

5. The combination in a car coupling, of a draw head, a coupling hook having its tongue provided with serrations, a locking dog, and an operating bar having serrations to cooperate with those on the coupling hook tongue and provided with means for releasing the locking dog, substantially as set forth.

6. A car coupling comprising a draw head, a coupling hook having a tongue and provided in the rear edge of said tongue with a notch for a pin on an operating bar, and also having said rear edge serrated, a locking dog and an ope ating bar arranged to unlock the locking dog, and having a pin entering the notch in the coupling hook tongue, and serrations cooperating with those on the said tongue, substantially as set forth.

HENRY o. onreo'nn.

lVitnesses:

B. F. EDWARDS, J. B. GORDON. 

